Space to toggle through the sample masking shapes. V1.1 Added delete and change zones. V1.0 I think this would be useful in many scenarios, and is simple enough to be easily customizable. I made this in like 10 minutes, and is little less than a janky particle system. I think if a system like this were to be improved, it could do stuff like rain, minimaps, and anything that could look anything like a Celeste dream block. The parameters are easily adjustable. Don't hide the particles when they are not touched by the mask, it breaks it. You're welcome for yearly content
gah